01 - Preheat the oven to 425°F and line a large baking tray with parchment paper.
02 - Toss the parsnip batons with olive oil, sea salt, and black pepper until evenly coated.
03 - Spread the parsnips in a single layer on the prepared tray and roast for 25 minutes, turning halfway through, until lightly golden.
04 - Gently warm the honey and butter (or olive oil) in a small saucepan, stirring until combined.
05 - Remove the tray from the oven, drizzle the honey glaze over the parsnips, toss to coat, then return to the oven for 8 to 10 minutes until golden and caramelized.
06 - Sprinkle fresh thyme leaves over the parsnips before serving, if desired.